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dxvk/src/util/util_env.cpp

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#include "util_env.h"
#include "./com/com_include.h"
namespace dxvk::env {
std::string getEnvVar(const wchar_t* name) {
DWORD len = ::GetEnvironmentVariableW(name, nullptr, 0);
std::wstring result;
while (len > result.size()) {
result.resize(len);
len = ::GetEnvironmentVariableW(
name, &result.at(0), result.size());
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}
result.resize(len);
return str::fromws(result);
}
std::string getExeName() {
std::wstring exePath;
exePath.resize(MAX_PATH + 1);
DWORD len = ::GetModuleFileNameW(NULL, &exePath.at(0), MAX_PATH);
exePath.resize(len);
std::string fullPath = str::fromws(exePath);
auto n = fullPath.find_last_of('\\');
return (n != std::string::npos)
? fullPath.substr(n + 1)
: fullPath;
}
std::string getTempDirectory() {
WCHAR windowsTempDir[MAX_PATH] = {0};
UINT ret = ::GetTempPathW(MAX_PATH, windowsTempDir);
if (ret > MAX_PATH || ret == 0)
return std::string();
auto dxvkTempDir = std::wstring(windowsTempDir) + L"dxvk\\";
if (::CreateDirectoryW(dxvkTempDir.c_str(), 0) == 0) {
if (::GetLastError() != ERROR_ALREADY_EXISTS)
return std::string();
}
return str::fromws(dxvkTempDir);
}
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}